Battery adaptor



FIG. 1 of the drawings is an isometric view showing the front, top, and right side of the battery adaptor;

FIG. 2 is a front view of the battery adaptor;

FIG. 3 is a right side view;

FIG. 4 is a top view;

FIG. 5 is a left side view;

FIG. 6 is a back view; and,

FIG. 7 is a bottom view. 

The ornamental design for a battery adaptor, as shown. 